SSU-1
| Brand | Heathkit |
| Manufacturer | Daystrom Ltd. |
| Function | Speaker (Kit) |
| Produced | 1960 |
| Country | United Kingdom |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 29.2 × 58.4 × 29.8 cm (W × H × D) |
| Frequency Response | 40Hz-16kHz ±5dB |
| Treble | 4" (Elac IW4) |
| Midrange/Bass | 8" Paper Cone (Plessey H8) |
| Impedance (Nominal) | 15Ω |
| Crossover Frequency | 3kHz |
| Enclosure Type | Bass Reflex |
| Finish | Unfinished |
| MSRP (1960) | £10 9s |
| Notes | Optional legs for vertical positioning (short) or horizontal (long). |